Question

我发现QueryDslPredicateExecutor对于减少样板非常有用，但它似乎正在投掷一把猴子扳手。我现在尝试使用自定义基类存储库扩展JpaRepository，并且在启动时，Spring无法正确实例化存储库。

//Custom base class
@NoRepositoryBean
public interface IdAwareRepository<A, ID extends Serializable> extends JpaRepository<A, ID> {
    // ID getId(A a);
}

// Base class implementation
public class IdAwareRepositoryImpl<A, ID extends Serializable>
    extends SimpleJpaRepository<A, ID> implements IdAwareRepository<A, ID>  {
    public IdAwareRepositoryImpl(JpaEntityInformation<A, ?> entityInformation, EntityManager entityManager) {
        super(entityInformation, entityManager);
    }
}

// Individual repo
@Repository
public interface MyPojoRepository extends JpaRepository<MyPojo, Integer>, QueryDslPredicateExecutor<MyPojo> {
}

// Spring boot main application class
@EnableJpaRepositories(repositoryBaseClass = IdAwareRepositoryImpl.class)
@EntityScan(basePackageClasses = {Application.class,   Jsr310JpaConverters.class})
@EnableAutoConfiguration(exclude = {
      org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration.class,
      org.springframework.boot.actuate.autoconfigure.ManagementWebSecurityAutoConfiguration.class})
@SpringBootApplication
public class Application {}

我已经尝试了几个关于这个主题的变体，但是没有幸运地成功连线。我在Spring的问题跟踪器https://jira.spring.io/browse/DATAJPA-674上遇到了类似的问题，但没有解释修复，只是代码被重构为更容易使用。

我收到以下错误：

引起： org.springframework.data.mapping.PropertyReferenceException：没有物业找到所有类型MyPojo！在 org.springframework.data.mapping.PropertyPath。（PropertyPath.java:77）在 org.springframework.data.mapping.PropertyPath.create（PropertyPath.java:329）在 org.springframework.data.mapping.PropertyPath.create（PropertyPath.java:309）在 org.springframework.data.mapping.PropertyPath.from（PropertyPath.java:272）在 org.springframework.data.mapping.PropertyPath.from（PropertyPath.java:243）在 org.springframework.data.repository.query.parser.Part。（Part.java:76）在 org.springframework.data.repository.query.parser.PartTree $ OrPart。（PartTree.java:235）在 org.springframework.data.repository.query.parser.PartTree $ Predicate.buildTree（PartTree.java:373）在 org.springframework.data.repository.query.parser.PartTree $谓词（PartTree.java:353）在 org.springframework.data.repository.query.parser.PartTree。（PartTree.java:84）在 org.springframework.data.jpa.repository.query.PartTreeJpaQuery。（PartTreeJpaQuery.java:62）在 org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy $ CreateQueryLookupStrategy.resolveQuery（JpaQueryLookupStrategy.java:100）在 org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy $ CreateIfNotFoundQueryLookupStrategy.resolveQuery（JpaQueryLookupStrategy.java:211）在 org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy $ AbstractQueryLookupStrategy.resolveQuery（JpaQueryLookupStrategy.java:74）在 org.springframework.data.repository.core.support.RepositoryFactorySupport $ QueryExecutorMethodInterceptor。（RepositoryFactorySupport.java:416）在 org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository（RepositoryFactorySupport.java:206）在 org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn（RepositoryFactoryBeanSupport.java:251）在 org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet（RepositoryFactoryBeanSupport.java:237）在 org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet（JpaRepositoryFactoryBean.java:92）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1637）在 org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1574）

对我来说，Spring无法将自定义基类和QueryDslPredicateExecutor扩展连接到JpaRepository

Answer 1

我通过让我的基础存储库扩展QueryDslMongoRepository解决了类似的问题您或许可以扩展类似的课程。

"No property exists found for type"... When using the QueryDslPredicateExecutor with MongoDB and Spring-Data

自定义存储库基类+ QueryDslPredicateExecutor

1 个答案: